CVE-2018-20452: The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly…

PriorityP431high8.8CVSS 3.0

AVNACLPRNUIRSUCHIHAH

EPSS

1.50%

71.8th percentile

The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
debian	r-cran-readxl	< r-cran-readxl 1.2.0.9000-1 (bookworm)	r-cran-readxl 1.2.0.9000-1 (bookworm)
libxls_project	libxls	—	—

CVSS provenance

nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

osv8.8HIGH

vendor_debian8.8HIGH

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